| 15 July 1015 | Kiev [births and deaths] | St Vladimir I, grand prince of Kiev, who united Kiev and Novgorod into a single state, and who determined the course of Christianity in Russia, dies in Berestova, near Kiev (59). |
| 15 July 1099 | Fatimid Caliphate, Palestine [Crusades (1095–1272)] | The crusaders take Jerusalem by storm after a short siege. |
| 15 July 1149 | Kingdom of Jerusalem [churches and temples] | The Church of the Holy Sepulchre in Jerusalem is dedicated. |
| 15 July 1337 | France, Holy Roman Empire, England [treaties] | Under the Treaty of Valenciennes King Ludwig IV of Bavaria and King Edward III of England become allies against France. |
| 15 July 1410 | Poland-Lithuania [wars] | In the Great Northern War, King Wldyslaw Jagiello of Poland and Grand Duke Vitold of Lithuania defeat the Teutonic Knights at Grunwald (Tannenberg). |
| 15 July 1592 | Japan, Korea [wars] | Invading Japanese forces under Konishi Yukinaga defeat the remnants of the royal Choson (Korean) army at the Taedong River and capture Pyongyang. However, guerrilla resistance stiffens and the control of the Japanese over most of the country is nominal as they await an order to invade China. |
| 15 July 1606 | United Netherlands [births and deaths] | Rembrandt Harmensz van Rijn, Dutch painter, often regarded as one of the greatest in history, born in Leiden, United Netherlands (–1669). |
| 15 July 1789 | France [administration] | The Commune de Paris (municipal government) is formed in Paris, France. It appoints Jean Bailly as mayor, sets up the National Guard under the Marquis de Lafayette, and is responsible for municipal administration. |
| 15 July 1801 | France, Italy [political events] | A concordat with the papacy drawn up by Napoleon Bonaparte effectively places the church in France under state control. The pope is allowed to keep the Papal States, with the exception of Ferrara, Bologna, and Romagna, which are annexed by France. |
| 15 July 1840 | Russian Empire, UK, Prussia, Austrian Empire, Egypt, Ottoman Empire, Crete [treaties] | Russia, Britain, Prussia, and Austria form the Quadruple Alliance in support of the Ottoman Empire and by the Treaty of London offer Egypt to its ruler and Ottoman opponent, Mehmet Ali, as a hereditary possession and also southern Syria for life, provided he gives up Crete and northern Syria. He refuses, in the hope of French aid. |
| 15 July 1856 | UK [natural disasters] | A gas explosion in a colliery in South Wales kills 114 miners. |
| 15 July 1912 | United Kingdom [social legislation] | The first National Insurance payments are made in Britain. |
| 15–18 July 1918 | France [World War I (1914–18)] | At the Second Battle of the Marne, Allied forces halt the German advance towards Paris, France, and begin to advance along the Aisne-Marne front. |
| 15–22 July 1933 | [aircraft] | US aviator Wiley Post makes the first solo flight around the world, in 7 days 18 hr 49 min. |
| 15 July 1948 | UK [everyday life] | Alcoholics Anonymous, founded in the USA, sets up in the UK. |
| 15 July 1974 | Cyprus [political events] | The Cypriot National Guard, with Greek support, overthrows President Makarios of Cyprus and installs Nicos Sampson, a former National Organization of Cypriot Combatants (EOKA) terrorist, in his place. |
| 15 July 1975 | USA, USSR [space exploration] | The launch of the Soviet spaceship Soyuz 19 signals the start of a joint US–Soviet space mission. US and Soviet astronauts meet in space on 17 July when Soyuz 19 docks with its NASA counterpart, Apollo 18. |
